<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Measurements on a Selection of Paperback Books</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="R.css" />
</head><body>

<table width="100%" summary="page for softbacks"><tr><td>softbacks</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>Measurements on a Selection of Paperback Books</h2>

<h3>Description</h3>

<p>This is a subset of the <code>allbacks</code> data frame 
which gives measurements
on the volume and weight of 8 paperback books.
</p>


<h3>Usage</h3>

<pre>softbacks</pre>


<h3>Format</h3>

<p>This data frame contains the following columns:
</p>

<dl>
<dt>volume</dt><dd><p>a numeric vector giving the book volumes
in cubic centimeters</p>
</dd>
<dt>weight</dt><dd><p>a numeric vector giving the weights in grams</p>
</dd>
</dl>



<h3>Source</h3>

<p>The bookshelf of J. H. Maindonald.
</p>


<h3>Examples</h3>

<pre>
print("Outliers in Simple Regression - Example 5.2")
paperback.lm &lt;- lm(weight ~ volume, data=softbacks)
summary(paperback.lm)
plot(paperback.lm)
</pre>


</body></html>
